InChI=1S/C21H22ClN3O3S/c22-17-6-4-15(5-7-17)14-28-19-10-18(24-13-19)12-25-29(26,27)21-3-1-2-16-11-23-9-8-20(16)21/h1-9,11,18-19,24-25H,10,12-14H2/t18-,19+/m0/s1